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occt/src/BRepApprox/BRepApprox_TheComputeLineOfApprox.hxx
ifv d1775ee992 0030621: Implementation of building U-periodical surfaces. 
draw_test_harness.md - description of new options in Draw commands

AppDef_BSplineCompute.hxx, BRepApprox_TheComputeLineOfApprox.hxx, GeomInt_TheComputeLineOfWLApprox.hxx, Approx_BSplComputeLine.gxx - implementation of method SetPeriodic(...) and implementation periodic boundary conditions for multiline in order to get periodic multicurve.

GeomAPI_PointsToBSplineSurface.hxx, GeomAPI_PointsToBSplineSurface.cxx - adding new parameter for methods Init(...) and Interpolate(...), implementation of building periodic tangents for first and last AppDef_MultiPointConstraint of multiline for U direction of surface.

GeometryTest_APICommands.cxx - implementation of new functionality in Draw command surfapp and surfint

GeomFill_NSections.cxx
Fixing problem with bugs modalg_3 bug606_2
2019-04-23 18:12:16 +03:00

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// Created on: 1995-06-06
// Created by: Jean Yves LEBEY
// Copyright (c) 1995-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _BRepApprox_TheComputeLineOfApprox_HeaderFile
#define _BRepApprox_TheComputeLineOfApprox_HeaderFile
#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Handle.hxx>
#include <AppParCurves_MultiBSpCurve.hxx>
#include <Standard_Boolean.hxx>
#include <Approx_ParametrizationType.hxx>
#include <TColStd_HArray1OfReal.hxx>
#include <TColStd_HArray1OfInteger.hxx>
#include <AppParCurves_HArray1OfConstraintCouple.hxx>
#include <Standard_Integer.hxx>
#include <Standard_Real.hxx>
#include <AppParCurves_Constraint.hxx>
#include <math_Vector.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <TColStd_Array1OfInteger.hxx>
class BRepApprox_TheMultiLineOfApprox;
class BRepApprox_TheMultiLineToolOfApprox;
class BRepApprox_MyBSplGradientOfTheComputeLineOfApprox;
class BRepApprox_BSpParLeastSquareOfMyBSplGradientOfTheComputeLineOfApprox;
class BRepApprox_BSpParFunctionOfMyBSplGradientOfTheComputeLineOfApprox;
class BRepApprox_BSpGradient_BFGSOfMyBSplGradientOfTheComputeLineOfApprox;
class BRepApprox_MyGradientbisOfTheComputeLineOfApprox;
class BRepApprox_ParLeastSquareOfMyGradientbisOfTheComputeLineOfApprox;
class BRepApprox_ResConstraintOfMyGradientbisOfTheComputeLineOfApprox;
class BRepApprox_ParFunctionOfMyGradientbisOfTheComputeLineOfApprox;
class BRepApprox_Gradient_BFGSOfMyGradientbisOfTheComputeLineOfApprox;
class AppParCurves_MultiBSpCurve;
class AppParCurves_MultiCurve;
class BRepApprox_TheComputeLineOfApprox
{
public:
DEFINE_STANDARD_ALLOC
//! The MultiLine <Line> will be approximated until tolerances
//! will be reached.
//! The approximation will be done from degreemin to degreemax
//! with a cutting if the corresponding boolean is True.
//! If <Squares> is True, the computation will be done with
//! no iteration at all.
//!
//! The multiplicities of the internal knots is set by
//! default.
Standard_EXPORT BRepApprox_TheComputeLineOfApprox(const BRepApprox_TheMultiLineOfApprox& Line, const Standard_Integer degreemin = 4, const Standard_Integer degreemax = 8, const Standard_Real Tolerance3d = 1.0e-3, const Standard_Real Tolerance2d = 1.0e-6, const Standard_Integer NbIterations = 5, const Standard_Boolean cutting = Standard_True, const Approx_ParametrizationType parametrization = Approx_ChordLength, const Standard_Boolean Squares = Standard_False);
//! The MultiLine <Line> will be approximated until tolerances
//! will be reached.
//! The approximation will be done from degreemin to degreemax
//! with a cutting if the corresponding boolean is True.
//! If <Squares> is True, the computation will be done with
//! no iteration at all.
Standard_EXPORT BRepApprox_TheComputeLineOfApprox(const BRepApprox_TheMultiLineOfApprox& Line, const math_Vector& Parameters, const Standard_Integer degreemin = 4, const Standard_Integer degreemax = 8, const Standard_Real Tolerance3d = 1.0e-03, const Standard_Real Tolerance2d = 1.0e-06, const Standard_Integer NbIterations = 5, const Standard_Boolean cutting = Standard_True, const Standard_Boolean Squares = Standard_False);
//! Initializes the fields of the algorithm.
Standard_EXPORT BRepApprox_TheComputeLineOfApprox(const math_Vector& Parameters, const Standard_Integer degreemin = 4, const Standard_Integer degreemax = 8, const Standard_Real Tolerance3d = 1.0e-03, const Standard_Real Tolerance2d = 1.0e-06, const Standard_Integer NbIterations = 5, const Standard_Boolean cutting = Standard_True, const Standard_Boolean Squares = Standard_False);
//! Initializes the fields of the algorithm.
Standard_EXPORT BRepApprox_TheComputeLineOfApprox(const Standard_Integer degreemin = 4, const Standard_Integer degreemax = 8, const Standard_Real Tolerance3d = 1.0e-03, const Standard_Real Tolerance2d = 1.0e-06, const Standard_Integer NbIterations = 5, const Standard_Boolean cutting = Standard_True, const Approx_ParametrizationType parametrization = Approx_ChordLength, const Standard_Boolean Squares = Standard_False);
//! Constructs an interpolation of the MultiLine <Line>
//! The result will be a C2 curve of degree 3.
Standard_EXPORT void Interpol (const BRepApprox_TheMultiLineOfApprox& Line);
//! Initializes the fields of the algorithm.
Standard_EXPORT void Init (const Standard_Integer degreemin = 4, const Standard_Integer degreemax = 8, const Standard_Real Tolerance3d = 1.0e-03, const Standard_Real Tolerance2d = 1.0e-06, const Standard_Integer NbIterations = 5, const Standard_Boolean cutting = Standard_True, const Approx_ParametrizationType parametrization = Approx_ChordLength, const Standard_Boolean Squares = Standard_False);
//! runs the algorithm after having initialized the fields.
Standard_EXPORT void Perform (const BRepApprox_TheMultiLineOfApprox& Line);
//! The approximation will begin with the
//! set of parameters <ThePar>.
Standard_EXPORT void SetParameters (const math_Vector& ThePar);
//! The approximation will be done with the
//! set of knots <Knots>. The multiplicities will be set
//! with the degree and the desired continuity.
Standard_EXPORT void SetKnots (const TColStd_Array1OfReal& Knots);
//! The approximation will be done with the
//! set of knots <Knots> and the multiplicities <Mults>.
Standard_EXPORT void SetKnotsAndMultiplicities (const TColStd_Array1OfReal& Knots, const TColStd_Array1OfInteger& Mults);
//! changes the degrees of the approximation.
Standard_EXPORT void SetDegrees (const Standard_Integer degreemin, const Standard_Integer degreemax);
//! Changes the tolerances of the approximation.
Standard_EXPORT void SetTolerances (const Standard_Real Tolerance3d, const Standard_Real Tolerance2d);
//! sets the continuity of the spline.
//! if C = 2, the spline will be C2.
Standard_EXPORT void SetContinuity (const Standard_Integer C);
//! changes the first and the last constraint points.
Standard_EXPORT void SetConstraints (const AppParCurves_Constraint firstC, const AppParCurves_Constraint lastC);
//! Sets periodic flag.
//! If thePeriodic = Standard_True, algorith tries to build periodic
//! multicurve using corresponding C1 boundary condition for first and last multipoints.
//! Multiline must be closed.
Standard_EXPORT void SetPeriodic(const Standard_Boolean thePeriodic);
//! returns False if at a moment of the approximation,
//! the status NoApproximation has been sent by the user
//! when more points were needed.
Standard_EXPORT Standard_Boolean IsAllApproximated() const;
//! returns False if the status NoPointsAdded has been sent.
Standard_EXPORT Standard_Boolean IsToleranceReached() const;
//! returns the tolerances 2d and 3d of the MultiBSpCurve.
Standard_EXPORT void Error (Standard_Real& tol3d, Standard_Real& tol2d) const;
//! returns the result of the approximation.
Standard_EXPORT const AppParCurves_MultiBSpCurve& Value() const;
//! returns the result of the approximation.
Standard_EXPORT AppParCurves_MultiBSpCurve& ChangeValue();
//! returns the new parameters of the approximation
//! corresponding to the points of the MultiBSpCurve.
Standard_EXPORT const TColStd_Array1OfReal& Parameters() const;
protected:
private:
//! is internally used in the algorithm.
Standard_EXPORT Standard_Boolean Compute (const BRepApprox_TheMultiLineOfApprox& Line, const Standard_Integer fpt, const Standard_Integer lpt, math_Vector& Para, const TColStd_Array1OfReal& Knots, TColStd_Array1OfInteger& Mults);
//! is internally used in the algorithm.
Standard_EXPORT Standard_Boolean ComputeCurve (const BRepApprox_TheMultiLineOfApprox& Line, const Standard_Integer firspt, const Standard_Integer lastpt);
//! computes new parameters between firstP and lastP.
Standard_EXPORT void Parameters (const BRepApprox_TheMultiLineOfApprox& Line, const Standard_Integer firstP, const Standard_Integer LastP, math_Vector& TheParameters) const;
Standard_EXPORT Standard_Real SearchFirstLambda (const BRepApprox_TheMultiLineOfApprox& Line, const math_Vector& Para, const TColStd_Array1OfReal& Knots, const math_Vector& V, const Standard_Integer index) const;
Standard_EXPORT Standard_Real SearchLastLambda (const BRepApprox_TheMultiLineOfApprox& Line, const math_Vector& Para, const TColStd_Array1OfReal& Knots, const math_Vector& V, const Standard_Integer index) const;
Standard_EXPORT void TangencyVector (const BRepApprox_TheMultiLineOfApprox& Line, const AppParCurves_MultiCurve& C, const Standard_Real U, math_Vector& V) const;
Standard_EXPORT void FirstTangencyVector (const BRepApprox_TheMultiLineOfApprox& Line, const Standard_Integer index, math_Vector& V) const;
Standard_EXPORT void LastTangencyVector (const BRepApprox_TheMultiLineOfApprox& Line, const Standard_Integer index, math_Vector& V) const;
Standard_EXPORT void FindRealConstraints (const BRepApprox_TheMultiLineOfApprox& Line);
AppParCurves_MultiBSpCurve TheMultiBSpCurve;
Standard_Boolean alldone;
Standard_Boolean tolreached;
Approx_ParametrizationType Par;
Handle(TColStd_HArray1OfReal) myParameters;
Handle(TColStd_HArray1OfReal) myfirstParam;
Handle(TColStd_HArray1OfReal) myknots;
Handle(TColStd_HArray1OfInteger) mymults;
Standard_Boolean myhasknots;
Standard_Boolean myhasmults;
Handle(AppParCurves_HArray1OfConstraintCouple) myConstraints;
Standard_Integer mydegremin;
Standard_Integer mydegremax;
Standard_Real mytol3d;
Standard_Real mytol2d;
Standard_Real currenttol3d;
Standard_Real currenttol2d;
Standard_Boolean mycut;
Standard_Boolean mysquares;
Standard_Integer myitermax;
AppParCurves_Constraint myfirstC;
AppParCurves_Constraint mylastC;
AppParCurves_Constraint realfirstC;
AppParCurves_Constraint reallastC;
Standard_Integer mycont;
Standard_Real mylambda1;
Standard_Real mylambda2;
Standard_Boolean myPeriodic;
};
#endif // _BRepApprox_TheComputeLineOfApprox_HeaderFile
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